[1]林立金,朱雪梅,邵继荣,等.紫色土坡耕地横坡垄作的水土流失特征及作物产量效应[J].水土保持研究,2007,14(03):254-255,258.
　LIN Li-jin,ZHUN Xue-mei,SHAO Ji-rong,et al.Study on Characteristics of Soil and Water Loss and Effect of Crop yield by Cross Ridge in Purple Soil of Sloping Farmland[J].Research of Soil and Water Conservation,2007,14(03):254-255,258.
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紫色土坡耕地横坡垄作的水土流失特征及作物产量效应

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 14 期数: 2007年03期 页码: 254-255,258 栏目: 出版日期: 1900-01-01
Title:
Study on Characteristics of Soil and Water Loss and Effect of Crop yield by Cross Ridge in Purple Soil of Sloping Farmland
作者:
林立金1, 朱雪梅1, 邵继荣2, 杨远祥1, 蒋小军1, 吴咏3
1. 四川农业大学资源环境学院, 四川, 雅安, 625014;
2. 四川农业大学生命理学院, 四川, 雅安, 625014;
3. 遂宁市中区水土保持办公室, 四川, 遂宁, 629000
Author(s):
LIN Li-jin1, ZHUN Xue-mei1, SHAO Ji-rong2, YANG Yuan-xiang1, JIANG Xiao-jun1, WU Yong3
1. College of Resource and Environment, Sichuan Agricultural University, Yaan, Sichuan 625014, China;
2. College of Life Science, Sichuan Agricultural University, Yaan, Sichuan 625014, China;
3. Soil and Water Conservation Office of Suining Center District, Suining, Sichuan 629000, China
关键词:
横坡垄作; 坡耕地; 水土流失; 作物产量; 紫色土
Keywords:
cross ridge; sloping farmland; soil and water loss; crop yield; purple soil
分类号:
S157
摘要:
通过在紫色土坡耕地上进行横坡垄作，观测了不同坡度坡耕地的水土流失及作物产量状况.结果表明：研究区的降雨集中在4～9月，形成不同坡度的侵蚀降雨量在年际间的分布也不相同.随着坡度的增大，径流量和泥沙量均增大，但径流系数先增大，后减小，再增大.径流量、泥沙量与降雨量在坡度≥15°时均呈极显著正相关关系，而在坡度为0°与降雨强度呈极显著正相关关系;与之相应，随着坡度的增大，除小麦产量是先减小后增大外，其余两种作物(玉米和甘薯)的产量均是先减小后增大，再减小，且三种作物产量变化的过渡坡度均为15°.
Abstract:
The characteristics of soil and water loss and crop yield by cross ridge in purple soil of different sloping farmland were studied.The result showed that rainfall concentrated from April to September of the area in each year,and erosion rainfalls were different among years.With the increasing of slope,both of runoff and sediment yield increased,and runoff coefficient increased in lower slope,and reduced in mid-slope,and increased again in higher slope.The relationship between runoff and sediment yield with rainfall got positive correlation at 1% level under the slope≥15°,and the relationship between runoff and sediment yield with rainfall intensity got positive correlation at 5% level under the slope of 20°.With the increasing of slope,the yield of wheat reduced in lower slope,and increased in higher slope,and the yields of other two kinds of crops(corn and sweet potato) reduced in lower slope,and increased in mid-slope,and reduced again in higher slope.The transitional slope of three crops yields were the slope of 15°.

参考文献/References:

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备注/Memo

收稿日期:2006-9-25
基金项目:四川省科技厅重点攻关项目(2006Z08-012)
作者简介:林立金(1980- )，男，四川龙泉驿人，硕士研究生，主要从事土壤侵蚀与土壤质量研究;

更新日期/Last Update: 1900-01-01